Rising Stem with guide groove, bolted or pressure seal boonnet, fire safe and anti-static, Double Block and Bleed DBB function, zero leakage, sealing without contact friction when switching, optional with bypass balanced pressure design, operation torque is light.
Material: Carbon Steel, Stainless Steel, Alloy Steel
Nominal Size: NPS 2"~24",DN50~600 Pressure Rate: Class 150~1500,PN 10~250
Pressure Rate: PN16～PN420,CLass150～CLass2500
Temperature Range: -46℃~+200℃
Operator: Manual, Pneumatic,Electric, etc...
Application range: Cut off or connect the pipeline medium on the pipelines of various working conditions such as petroleum, chemical,
pharmaceutical, fertilizer, and electric power industries.
◎ Design Standard: API 6D,API 599, ASME B16.34,GB/T1224,GB/T20173,GB/T19672
◎ Pressure Temperature Rate: ASME B16.34,GB/T 12224
◎ Face to Face: ASME B16.10,GB/T 12221,EN558
◎ Flange Standard: ASME B16.5, ASME B16.47,GB/T9113, JB/T79, HG/T 20592, EN 1092
◎ Butt Weld Standard: ASME B16.25,GB/T 12224
◎ Fire Safe: API607
◎ Pressure Test: API598,GB/T13927
RAYS cast steel check valves are designed and manufactured to provide maximum service life and dependability. All check valves meet the design requirements of American Petroleum Institute standard API600 & 6D.BS EN 13709 and generally conform to American Society of Mechanical Engineers standard ASME B16.34. Valves are available in a complete range of body/cover materials and trims.
The Non-Rising Stem Gate Valve is also called the rotating stem gate valve. Stem and nut are arranged on the gate plate, handwheel rotation drive valve stem rotate to lift the gate, usually there is a trapezoidal thread at the bottom of the valve stem and the rotation movement is turned into a linear motion through the limit slot between the valve stem and the gate body and the gate body and the gate, that is, the operation torque is turned into operation thrust. When the valve is turned on, when the height of the gate is equal to the diameter of the valve 1: 1: 1, the channel of the fluid is completely unblocked, but at the run, this position cannot be monitored. In actual use, the vertex of the valve stem is used as a sign, that is, the position that is unmoved as its full opening position. The non-rising stem gate valve has the design characteristics of the ordinary wedge-type gate valve. The valve body has a guide mechanism, which can prevent the gate from rotating when the gate is turned on or closed, ensuring that the seal of the gate on the valve seat is accurate accordingly. At the same time, the wedge valve does not rub with the valve seat before turning off, thereby reducing the wear of the cover and effectively extending the service life of the valve.
The Insulation Jacket Ball Valve is specially designed for pipeline systems that require maintaining the temperature of the medium. It is made of high-quality stainless steel or carbon steel and combines with precise processing technology to ensure reliable sealing and smooth control under high-temperature and high-pressure conditions. The valve body adopts a jacketed insulation structure and can be filled with steam or heat transfer oil, effectively reducing heat loss. It is suitable for high-temperature fluid transportation systems in industries such as chemical, petroleum, heat supply, and pharmaceuticals. The structure is compact, the opening and closing is rapid, the sealing performance is excellent, and it is an ideal control valve for high-temperature fluid pipelines.